T-Mobile on unlocked GS3

Hey, a question. I have a gs3 currently on att with no contract. Very happy w/service but was curious how tmobile is considering I could save money if I used them. Here is what I want to know. Can I unlock my phone with the unlock code that I currently have to make it unlocked, get a sim from tmobile to use the phone on their network and get 4G data? I live in an area (DC) where 4G is available. Tmobile has some appealing no contract plans and they are peaking my intrest. Lastly what would happen with att? Would I have to port my numb to tmobile? If anyone can help, thanks in advance.

Re: T-Mobile on unlocked GS3

Originally Posted by whodatboy

Can I unlock my phone with the unlock code that I currently have to make it unlocked, get a sim from tmobile to use the phone on their network and get 4G data?

Unlikely. AT&T's GS3 does not have support for the 1700 AWS band that T-Mobile typically uses for their HSPA+ service, so you'd get Edge speeds at best. However, T-Mobile is currently refarming some of their 1900 band over to HSPA+, which an unlocked AT&T GS3 would technically support. I don't know if DC has switched over yet, or even if anyone has actually had success in doing this. Check out the XDA forums, they're generally more adventurous in these areas.

Re: T-Mobile on unlocked GS3

From everything that I have been reading it seems I can take my unlocked att gs3 to tmobile and benefit from their unlimited everything plan for 70 buckd a month. Question is, is hspa+ readily available throughout my area? I have been reading tmobile can be very spotty at times. Anyone know more about this? I live in the Dac suburbs of Silver Spring

Re: T-Mobile on unlocked GS3

Question is, is hspa+ readily available throughout my area? I have been reading tmobile can be very spotty at times. Anyone know more about this? I live in the Dac suburbs of Silver Spring

If someone says that coverage is spotty, they're most likely talking about coverage on T-Mobile's native 1700 MHz band. So their information may not mean anything to you because your phone can't do 3G/HSPA+ on TMO's native band anyway.

You can check T-Mobile's network coverage by using their official network map tool. The only issue (and a big one, at that) is whether this map shows 1900 MHz coverage, which is what you need.

Re: T-Mobile on unlocked GS3

Originally Posted by raino

If someone says that coverage is spotty, they're most likely talking about coverage on T-Mobile's native 1700 MHz band. So their information may not mean anything to you because your phone can't do 3G/HSPA+ on TMO's native band anyway.

You can check T-Mobile's network coverage by using their official network map tool. The only issue (and a big one, at that) is whether this map shows 1900 MHz coverage, which is what you need.

Well according to their "map". I am in a very good coverage area. I guess I will just have to do a real world test.

Re: T-Mobile on unlocked GS3

I am getting a tmobile sim today to test out their network on my unlocked att gs3. I will give speedtests and network reliability for those who are considering a switch in the DC metro/suburbs

Sent from Samsung Galaxy S3 via Tapatalk

I have T-mobile in the DC suburbs (Prince William County) and find that speeds really vary tower to tower. One or two towers can get me around 15 down and 3 up so hoping that we are in the process of being refarmed.

Re: T-Mobile on unlocked GS3

Originally Posted by mwilkins

I have T-mobile in the DC suburbs (Prince William County) and find that speeds really vary tower to tower. One or two towers can get me around 15 down and 3 up so hoping that we are in the process of being refarmed.

Sent from my Nexus 4 using Android Central Forums

Cool. Im not expecting lte speeds but a consistent 4-5 up or better is all I need to watch hulu and netflix w/o buffering, plus to save $45 a month would be a win-win

Re: T-Mobile on unlocked GS3

Question: Does anyone know where I can find the apn settings or network configurations for unlocked devices on T-Mobile? I am trying to get more of a solid connection to their Hspa+ network. I seem to be switching a lot between edge and 4G in areas that I should have full 4G. Can anyone help?

Re: T-Mobile on unlocked GS3

Originally Posted by whodatboy

Question: Does anyone know where I can find the apn settings or network configurations for unlocked devices on T-Mobile? I am trying to get more of a solid connection to their Hspa+ network. I seem to be switching a lot between edge and 4G in areas that I should have full 4G. Can anyone help?

You can find the APN settings on the T-Mobile website, which is where I got the settings in the screen shots below.

Re: T-Mobile on unlocked GS3

Originally Posted by whodatboy

From everything that I have been reading it seems I can take my unlocked att gs3 to tmobile and benefit from their unlimited everything plan for 70 buckd a month. Question is, is hspa+ readily available throughout my area? I have been reading tmobile can be very spotty at times. Anyone know more about this? I live in the Dac suburbs of Silver Spring

Sent from Samsung Galaxy S3 via Tapatalk

Also (if you're not already), be aware that T-Mobile's $70/mo plan, while a good deal, requires a 2-year contract - even when you bring your own device. I've been considering doing that plan, but for now, I've been fine with my 2GB high-speed cap on the $60/mo prepaid plan because I have the option to leave at any time without a penalty.

Re: T-Mobile on unlocked GS3

Re: T-Mobile on unlocked GS3

Originally Posted by CaptainChunk

Also (if you're not already), be aware that T-Mobile's $70/mo plan, while a good deal, requires a 2-year contract - even when you bring your own device. I've been considering doing that plan, but for now, I've been fine with my 2GB high-speed cap on the $60/mo prepaid plan because I have the option to leave at any time without a penalty.

As an FYI for $49/month Solavei offers a 4GB high-speed cap on the T-Mobile prepaid network. No contract required.

Re: T-Mobile on unlocked GS3

I've got an unlocked AT&T GS3 that we recently moved to TMO and I find it rather annoying on their $30/mo prepaid plan.. I work in an office that has tons of shielding and get no service.. When I get out into the parking lot it can take anywhere from 30 seconds to 4+ minutes to reacquire the TMO signal -- OUCH! I pickup Time Warner WIFI broadcast in the area AGES before TMO comes up..

I realize I'm not paying for any 4G data on my plan and with that said, I get a fraction of what I was getting on the AT&T network -- even wit 5 bars and "3G" listed on the top (which is their new refarmed network I gather), I still was getting 0.57Mbps up and 0.10mbps down.. Ugg! This is in the Los Angeles area (specifically near Redondo Beach)... Good thing I'm not paying the big $$ for this kind of service. I suspect that a different phone would work much better on the TMO network -- the iPhones are just not a good match IMHO.